Instrument: AD-FS2 Relative Humidity

Instrument type

Name

Non dew/frost point hygrometer

Acronym

Other hygrometer

Principle of operation

Measured parameter

Water Vapour, Relative Humidity

Operating principle

The MOZAIC-Humidity Device (MHD) is a special airborne humidity sensing device (AD-FS2), developed by Aerodata (Braunschweig, Germany) and based on the humidity and temperature transmitter HMP230 of Vaisala (Helsinkin, Finnland). The sensing element itself is a combination of a capacitive relative humidity sensor (Humicap-H, Vaisala) and a Pt100 temperature sensor which has been installed in a Rosemount housing mounted on the outside skin of the aircraft in the vicinity of the nose cone.

Measurement(s)

Thermodynamics

Dimension and weight

External dimension

Weight

0.0

Performance

Operating mode

In situ

Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

Operational restriction

Operational requirements

Certification approvals

Additional information

Relative humidity is measured by means of a capacitive sensor (Vaisala HumiCap-H) and a PT-100 temperature sensor. Both of them are integrated in a modified Rosemount housing.